How to proper inject a query into custom service?

[bodzin89]

I haven't found such a question, but I have such a problem: when I try to inject a Query into my custom service, it's always undefined.

// medusa-config.ts

    {
      resolve: './src/modules/custom',
      dependencies: [ContainerRegistrationKeys.QUERY],
      options: {
        token: process.env.CUSTOM_TOKEN,
      },
    },

// custom-service.ts

class CustomModuleService extends MedusaService({
  CustomEntity,
}) {
  protected logger_: InjectedDependencies["logger"];
  protected service_
  protected query_: Query
  constructor(container: InjectedDependencies, options: TelegramOptions) {
    super(container, options)

    this.logger_ = container.logger
    // query in container always "undefined"
    this.query_ = container[ContainerRegistrationKeys.QUERY]
    this.service_ = new ExternalService(options.token)
    this.onModuleInit()
  }

I may not have fully understood how the Medusa container isolation works. Could someone possibly point me to where I should dig?